package com.example.demo.customer;

import com.example.demo.exception.NotFoundException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Primary;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Objects;

@Service
public class CustomerService {
     private  final static Logger LOGGER = LoggerFactory.getLogger(CustomerService.class);
    private final CustomerRepository customerRepository;
@Autowired
    public CustomerService( CustomerRepository customerRepository) {
        this.customerRepository = customerRepository;
    }


    List<Customer> getCustomers() {
    LOGGER.info("getCustomers called");
        return customerRepository.findAll();

    }
    Customer getCustomer(Long id){
        return  customerRepository
                .findById(id)
                .orElseThrow(()-> {
                    NotFoundException notFoundException = new NotFoundException("customer " + id + "无法找到");
                    LOGGER.error("error: getCustomer {}" + id, notFoundException);
                    return notFoundException;
                });
    }

}
